Introduction My last post was Migrating a NetEye Server to New Hardware (Part 1), so take a look at that one if you haven’t already and then continue reading the rest of the Migration process here. Fix Unix Users and Groups (Only on Clusters) The NetEye installation process unfortunately doesn’t fix user/group ID’s for the…
Read MoreIntroduction Every few years (3-5) once your Hardware Guaranty expires, it’s time again to migrate your productive NetEye Server from the old Hardware to the new. This is a procedure that has to be done regularly, but unfortunately no “How To” documentation can be found for it. So today I’ll try to explain in a…
Read MoreIntroduction to NetApp and S3 NetApp offers a unified data storage system. NetApp’s ONTAP operating system supports a combination of file, block, and object protocols. We can use common storage (disk array), such as NetApp AFF or FAS, and operate it as file, object, and block storage. On an existing ONTAP cluster, we can enable…
Read MoreSuppose you’re using lots of maps to make the navigation of your IT infrastructure more user friendly for your (management) user who’s not at all technically minded. That person wants to see the IT status of their systems in graphical form, but there’s a problem in that the IT assets change over time, and it…
Read MoreWhat’s What NetEye is a comprehensive IT Monitoring and Observability platform developed by Würth Phoenix. It’s based on open-source tools like Icinga, NagVis, Grafana, Elastic Stack, among others, and is tailored for enterprise IT infrastructure monitoring, IT Operations Analytics (ITOA), and IT Service Management (ITSM). NagVis is an open-source visualization tool that provides graphical representations…
Read MoreNetApp® ONTAP® 9.6 and later versions include support for an expansive RESTful web services API. In comparison to an ONTAPI® application, the REST API offers a vastly simplified and workflow-driven user experience, allowing you to perform multiple operations on the storage objects with a single API. REST is the industry standard for API development, and…
Read MoreNagVis, which in NetEye 4 is called the “Maps” Application, is a visualization add-on for the well-known network management system Nagios® and Icinga. NagVis can visualize monitoring status data as objects overlaid on maps to display them in different layouts: So in general, NagVis (Maps) is a presentation tool for information gathered in NetEye by…
Read MoreElasticsearch limits the number of open shards per node with the max_shards_per_node cluster setting, which defaults to 1000. The limit on the total number of shards is then calculated from this setting with this formula: total_max_number_of_shards = cluster.max_shards_per_node * number of non-frozen data nodes If the total number of shards is reached either by a…
Read MoreA lot of people run regular tasks on their Windows Servers using the Windows Task Scheduler. Now it’s time to find out if these tasks run on time, within a limit, and complete successfully. This monitoring task is done over nscp.exe, so you should have NSClient++ installed along with your Icinga2 Agent. Take a look…
Read MoreWhenever I upgrade a NetEye Cluster with all its Satellites, it’s important that no host is forgotten, and that all packages are installed (which can happen because an upgrade error occurred, for example if one forgot to call neteye_finalize_installation). So I thought it would be handy to have a script/plugin that shows the current version…
Read MoreSay you want to monitor logs coming into your Elasticsearch instance, and have it send data to your Monitoring Dashboard. I’ll show you how to do this with a practical example, in particular for an event coming from the Active Directory where a user is locked out, and the associated Domain Controller sends the event…
Read MoreDo you have a SIEM installation based on Elasticsearch (like the NetEye 4 SIEM Module) and are you sending data to it from your hosts? Then you’ll surely want to know whether your host is actually sending data, or if nothing is coming out at all. For this I made available a simple icinga/nagios plugin…
Read MoreSay you’re using the SIEM Module in NetEye and are deploying the Elasticsearch Agent to your clients. You’d surely like to know if those agents are still sending data and are still connected to the Elastic Fleet server. I had this problem recently and came up with a new monitoring plugin that uses the Kibana-API…
Read MoreDo you ever need to reboot or do maintenance on your Windows Server? Then if the server is monitored by NetEye, you’ll surely want to mark it in downtime so as not to have notifications sent out for problems arising due to maintenance, and/or to be able to have the correct SLA marked for your…
Read MoreIf you have a NetEye with SIEM Module activated or own an Elasticsearch installation then you have surely activated the Elasticsearch Snapshots to make backups of all your indexes (or at least the important ones). However you have to take a regular look at your Snapshots Reports to check that everything is working correctly. I…
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